CA1226456A - Method and apparatus for producing acicular iron or iron alloy particles - Google Patents

Method and apparatus for producing acicular iron or iron alloy particles

Info

Publication number
CA1226456A
CA1226456A CA000448095A CA448095A CA1226456A CA 1226456 A CA1226456 A CA 1226456A CA 000448095 A CA000448095 A CA 000448095A CA 448095 A CA448095 A CA 448095A CA 1226456 A CA1226456 A CA 1226456A
Authority
CA
Canada
Prior art keywords
iron
particles
copper
alloy
strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000448095A
Other languages
English (en)
French (fr)
Inventor
Michael J. Pryor
Lifun Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olin Corp
Original Assignee
Olin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/570,119 external-priority patent/US4544463A/en
Priority claimed from US06/570,120 external-priority patent/US4540477A/en
Application filed by Olin Corp filed Critical Olin Corp
Application granted granted Critical
Publication of CA1226456A publication Critical patent/CA1226456A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/062—Fibrous particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Metallurgy (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
CA000448095A 1984-01-12 1984-02-23 Method and apparatus for producing acicular iron or iron alloy particles Expired CA1226456A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/570,119 US4544463A (en) 1983-05-27 1984-01-12 Method for producing equiaxed iron or iron alloy particles
US06/570,120 US4540477A (en) 1983-05-27 1984-01-12 Apparatus for producing acicular or equiaxed iron or iron alloy particles
US570,120 1984-01-12
US570,119 1984-01-12

Publications (1)

Publication Number Publication Date
CA1226456A true CA1226456A (en) 1987-09-08

Family

ID=27075239

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000448095A Expired CA1226456A (en) 1984-01-12 1984-02-23 Method and apparatus for producing acicular iron or iron alloy particles

Country Status (6)

Country Link
CA (1) CA1226456A (de)
DE (1) DE3407875A1 (de)
FR (1) FR2558086B1 (de)
GB (1) GB2152533B (de)
IT (1) IT1177587B (de)
NL (1) NL8401012A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214644A3 (de) * 1985-09-09 1988-10-05 Olin Corporation Verfahren zur Herstellung von ferromagnetischen Pulvern
DE4220849C1 (de) * 1992-06-25 1993-03-18 Schott Glaswerke, 6500 Mainz, De
ES2145703B1 (es) * 1998-04-07 2001-03-16 Promesos S L Procedimiento para la fabricacion de oxidos mixtos de caracteristicas magneticas, particulas obtenidas por el mismo, y su utilizacion.
DE202013007420U1 (de) * 2013-08-19 2013-10-16 Oleksandr Tashlyk Die Methode der Herstellung eines superdünnen unsichtbaren Materiales.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734817A (en) * 1956-02-14 Metallic powders
GB833089A (en) * 1956-09-12 1960-04-21 Handy & Harman Improvements in fine particle magnetic materials
GB1103396A (en) * 1966-02-07 1968-02-14 Int Nickel Ltd Manufacture of precious metal spheres and spheroids
DE2909995C2 (de) * 1978-03-16 1984-06-28 Kanto Denka Kogyo Co., Ltd., Tokyo Verfahren zur Herstellung eines Magnetpulvers
DE3026696A1 (de) * 1980-07-15 1982-02-18 Basf Ag, 6700 Ludwigshafen Ferromagnetische, im wesentlichen aus eisen bestehende metallteilchen mit einem oberflaechenueberzug, verfahren zu deren herstellung sowie ihre verwendung zur herstellung von magnetischen aufzeichnungstraegern

Also Published As

Publication number Publication date
IT1177587B (it) 1987-08-26
IT8447813A0 (it) 1984-03-07
GB2152533B (en) 1988-01-06
DE3407875A1 (de) 1985-07-18
FR2558086B1 (fr) 1986-12-26
NL8401012A (nl) 1985-08-01
FR2558086A1 (fr) 1985-07-19
GB2152533A (en) 1985-08-07
GB8411908D0 (en) 1984-06-13

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